"Memory is a strange thing. It doesn't work like I thought it did. We are so used to thinking of it as a camera or a tape recorder, but it's not like that at all. It's more like a painter. It creates a picture, but it's not always the same picture."
记忆是一件奇怪的事情。它的运作方式并不像我想象的那样。我们习惯于把它想象成相机或录音机，但它根本不是那样的。它更像是一个画家。它创造了一幅画，但这幅画并不总是相同的。
There are two ways to write error-free programs; only the third one works.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
每一个数学问题都是通向新理解世界的窗口。
